{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,18]],"date-time":"2026-10-18T02:59:01Z","timestamp":1792292341858,"version":"4.4.0"},"reference-count":50,"publisher":"Wiley","issue":"8","license":[{"start":{"date-parts":[[2020,2,9]],"date-time":"2020-02-09T00:00:00Z","timestamp":1581206400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"DOI":"10.13039\/100000069","name":"National Institute of Arthritis and Musculoskeletal and Skin Diseases","doi-asserted-by":"publisher","award":["K08AR068469"],"award-info":[{"award-number":["K08AR068469"]}],"id":[{"id":"10.13039\/100000069","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Journal Orthopaedic Research"],"published-print":{"date-parts":[[2020,8]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>The objectives of this study were to evaluate temporal changes in lubricin, hyaluronan (HA), and HA molecular weight (MW) distributions in three distinct models of equine joint injury affecting the carpal (wrist), tarsal (ankle), and femoropatellar (knee) joints. To establish ranges for lubricin, HA, and HA MW distributions across multiple joints, we first evaluated clinically healthy, high\u2010motion equine joints. Synovial fluid was collected from high\u2010motion joints in horses without clinical signs of joint disease (n\u2009=\u200911 horses, 102 joints) and from research\u00a0horses undergoing carpal osteochondral fragmentation (n\u2009=\u20098), talar cartilage impact injury (n\u2009=\u20097), and femoral trochlear ridge full\u2010thickness cartilage injury (n\u2009=\u200922) prior to and following arthroscopically induced joint injury. Lubricin and HA concentrations were measured via enzyme\u2010linked immunosorbent assays, and gel electrophoresis was performed to evaluate HA MW distributions. Synovial fluid parameters were analyzed via linear regression models, revealing that lubricin and HA concentrations were conserved across healthy, high\u2010motion joints. Lubricin concentrations increased post\u2010injury in all osteoarthritis models (carpal fragmentation<jats:italic>P<\/jats:italic>\u2009=\u2009.001; talar impact<jats:italic>P<\/jats:italic>\u2009&lt;\u2009.001; femoral trochlear ridge cartilage defect<jats:italic>P<\/jats:italic>\u2009=\u2009.03). Sustained loss of HA was noted post\u2010arthroscopy following carpal osteochondral fragmentation (<jats:italic>P<\/jats:italic>\u2009&lt;\u2009.0001) and talar impact injury (<jats:italic>P<\/jats:italic>\u2009&lt;\u2009.001). Lubricin may be elevated to compensate for the loss of HA and to protect cartilage post\u2010injury. Further investigation into the mechanisms regulating lubricin and HA following joint injury and their effects on joint homeostasis is warranted, including whether lubricin has value as a biomarker for post\u2010traumatic osteoarthritis.<\/jats:p>","DOI":"10.1002\/jor.24597","type":"journal-article","created":{"date-parts":[[2020,1,22]],"date-time":"2020-01-22T08:29:48Z","timestamp":1579681788000},"page":"1826-1835","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":14,"title":["Synovial fluid lubricin and hyaluronan are altered in equine osteochondral fragmentation, cartilage impact injury, and full\u2010thickness cartilage defect models"],"prefix":"10.1002","volume":"38","author":[{"given":"Bridgette T.","family":"Peal","sequence":"first","affiliation":[{"name":"Department of Clinical Sciences, College of Veterinary Medicine Cornell University Ithaca New 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